Add an explanation for the newly added variable.

Cc: stable@vger.kernel.org
Fixes: 63ba8422f876 ("sched/deadline: Introduce deadline servers")
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
---
 include/linux/sched.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 61591ac6eab6..abce356932cc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -637,6 +637,8 @@ struct sched_dl_entity {
 	 *
 	 * @dl_overrun tells if the task asked to be informed about runtime
 	 * overruns.
+	 *
+	 * @dl_server tells if this is a server entity.
 	 */
 	unsigned int			dl_throttled      : 1;
 	unsigned int			dl_yielded        : 1;
-- 
2.45.1